Pick up to 4 launch vehicles to compare side-by-side. State lives in the URL — share the link and the comparison loads exactly as you left it.
The global launch market reached $14.1 billion in 2024 — up 34% since 2021.
| Attribute | |||
|---|---|---|---|
| Company | Space One | Firefly Aerospace / Northrop Grumman | Isar Aerospace |
| Country | 🇯🇵 Japan | 🇺🇸 USA | 🇩🇪 Germany |
| Status | In Development | In Development | In Development |
| Vehicle class | Small | Medium | Small |
| Propellant | Solid | RP-1 / LOX | LOX / kerosene (~80% manufactured in-house) |
| Reusable | No | Yes | No |
| Stages | 4 | 2 | 2 |
| First flight | 2024 | 2027 | 2025 |
| Payload to LEO | — | 16,000+ kgas of [1]5 m fairing. Renamed from 'Medium Launch Vehicle' (MLV) to 'Eclipse' in May 2025 alongside the Northrop Grumman partnership. First stage (7 Miranda engines) designed for reuse from roughly the 6th flight onward; second stage uses one Vira engine. First flight targeted 2027 — stated plan, not yet flown. ↑ Best | 1,000 kgas of [1] |
| Payload to GTO | — | — | — |
| Height | — | — | — |
| Liftoff mass | — | — | — |
| Success rate | 0/3 — three consecutive failuresas of [1]2024-03-13: disintegrated shortly after liftoff. 2024-12-18: began tumbling during 1st-stage burn, flight terminated. 2026-03-04: flight termination activated ~70 seconds after liftoff. All three launches flew from Spaceport Kii, Wakayama — Japan's first private-sector spaceport. Program grounded as of this research; precise payload/height/mass specs not confirmed from a primary source. ↑ Best | — | 0/1 (first flight failed)as of [1]First flight from Andøya Spaceport (2025-03-30): liftoff succeeded but the rocket was terminated ~30 seconds in after a vent valve opened unexpectedly, causing loss of attitude control. Second flight ('Onward and Upward') repeatedly delayed through 2026 (weather, a safety-zone fishing vessel, a composite pressure vessel leak, then off-nominal fluid-system behavior as of 2026-06-15) — not yet flown as of this research. |
| Total flights | 3as of [1] ↑ Best | — | 1as of [1] |
| Cost / kg LEO | — | — | — |
| Summary | A Japanese commercial solid-fuel small launcher that has failed on all three flight attempts through March 2026, putting its commercial viability in serious question. | A medium-lift successor to Firefly's Alpha, co-developed with Northrop Grumman, aimed at the national-security and commercial medium-lift gap between small launchers and heavy-lift vehicles. | Germany's first orbital-class launcher attempt; its first flight in March 2025 was Western Europe's first orbital launch attempt from the European mainland. A qualification second flight carrying CubeSats and ESA experiments has slipped repeatedly through 2026. |
48 launch vehicles across 10 countries — active, retired, and in development — with primary-source citations from manufacturer user guides and agency press kits. Pure URL state: bookmark or share the link and the comparison reproduces exactly.